1
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Chen S, Ji YS, Choi Y, Youn SW. One-Pot Three-Component Reaction for the Synthesis of 3,4-Dihydroquinazolines and Quinazolin-4(3 H)-ones. J Org Chem 2024; 89:6428-6443. [PMID: 38608000 DOI: 10.1021/acs.joc.4c00458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/14/2024]
Abstract
A highly efficient and straightforward one-pot synthesis of diversely substituted 3,4-dihydroquinazolines and quinazolin-4(3H)-ones has been achieved through a domino three-component assembly reaction of arenediazonium salts, nitriles, and bifunctional aniline derivatives. This new protocol involves three C-N bond formations through the initial formation of N-arylnitrilium intermediates from arenediazonium salts and nitriles, followed by the sequential nucleophilic addition and cyclization reactions with bifunctional anilines, leading to such N-heterocyclic compounds of biological and pharmacological importance. This method offers a simple, expedient, and robust approach with the use of amenable and easily accessible reactants/reagents under metal-free mild conditions, good functional group tolerance, and high efficiency. The synthetic applications were also demonstrated by derivatization of the products obtained from these processes and syntheses of a diverse range of valuable polycyclic N-heterocycles.
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Affiliation(s)
- Shiwei Chen
- Center for New Directions in Organic Synthesis, Department of Chemistry and Research Institute for Natural Sciences, Hanyang University, Seoul 04763, Korea
| | - Yeong Shin Ji
- Center for New Directions in Organic Synthesis, Department of Chemistry and Research Institute for Natural Sciences, Hanyang University, Seoul 04763, Korea
| | - Yuri Choi
- Center for New Directions in Organic Synthesis, Department of Chemistry and Research Institute for Natural Sciences, Hanyang University, Seoul 04763, Korea
| | - So Won Youn
- Center for New Directions in Organic Synthesis, Department of Chemistry and Research Institute for Natural Sciences, Hanyang University, Seoul 04763, Korea
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2
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Jiang W, Li Y, Liu JQ, Wang XS. Copper-Catalyzed Consecutive Ullmann, Decarboxylation, Oxidation, and Dehydration Reaction for Synthesis of Pyrrolo or Pyrido[1,2- a]imidazo[1,2- c]quinazolines. Org Lett 2023; 25:5123-5127. [PMID: 37382582 DOI: 10.1021/acs.orglett.3c01873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/30/2023]
Abstract
A protocol for a copper-catalyzed intermolecular cross-coupling cascade between 2-(2-bromoaryl)-1H-benzo[d]imidazole analogues and proline or pipecolic acid has been developed. The developed protocol allows access to a variety of synthetically useful N-fused pyrrolo or pyrido[1,2-a]imidazo[1,2-c]quinazoline scaffolds with high efficiency and good functional group compatibility. Proline or pipecolic acid plays a dual role in the reaction: as ligand and reactants. A mechanistically consecutive approach for the Ullmann coupling, decarboxylation, oxidation, and dehydration reaction process was presented.
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Affiliation(s)
- Weidong Jiang
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
| | - Ye Li
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
| | - Jian-Quan Liu
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
| | - Xiang-Shan Wang
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional Materials, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
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3
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Kilimciler NB, Palavecino NM, Gruber N, Vega DR, Orelli LR, Díaz JE. Polyphosphoric Acid Esters Promoted Synthesis of Quinazolin-4(3 H)-imines from 2-Aminobenzonitrile. J Org Chem 2023. [PMID: 36919225 DOI: 10.1021/acs.joc.2c02558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Abstract
A novel method for the synthesis of quinazolin-4(3H)-imines (QIs) by trimethylsilyl polyphosphate (PPSE) promoted reaction of 2-aminobenzonitrile with secondary amides is reported. The reaction is general and allows for the synthesis of N3-aryl and N3-alkyl QIs with variable 2-substituents affording high yields. The procedure was extended to derivatives bearing additional functional groups. The method is operationally simple, involves easily available starting materials and a mild dehydrating agent, with wide functional group tolerance. The reaction procedure proved to be suitable for scaling-up. A possible reaction path via an intermediate nitrilium ion is proposed on the basis of literature data and experimental observations.
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Affiliation(s)
- Natalia B Kilimciler
- Cátedra de Química Orgánica II, Departamento de Ciencias Químicas, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, CONICET, Junín 956, 1113 Buenos Aires, Argentina
| | - Nicolás M Palavecino
- Cátedra de Química Orgánica II, Departamento de Ciencias Químicas, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, CONICET, Junín 956, 1113 Buenos Aires, Argentina
| | - Nadia Gruber
- Cátedra de Química Orgánica II, Departamento de Ciencias Químicas, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, CONICET, Junín 956, 1113 Buenos Aires, Argentina
| | - Daniel R Vega
- Departamento Física de la Materia Condensada, Gerencia de Investigación y Aplicaciones, CNEA y ECyT, Universidad Nacional de General San Martín, Av. Gral. Paz 1499, San Martín, 1650 Buenos Aires, Argentina
| | - Liliana R Orelli
- Cátedra de Química Orgánica II, Departamento de Ciencias Químicas, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, CONICET, Junín 956, 1113 Buenos Aires, Argentina
| | - Jimena E Díaz
- Cátedra de Química Orgánica II, Departamento de Ciencias Químicas, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, CONICET, Junín 956, 1113 Buenos Aires, Argentina
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4
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Hong YC, Ye JL, Huang PQ. One-Pot Synthesis of α-Amino Bisphosphonates from Nitriles via Tf 2O/HC(OR) 3-Mediated Interrupted Ritter-Type Reaction. J Org Chem 2022; 87:9044-9055. [PMID: 35748643 DOI: 10.1021/acs.joc.2c00718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A versatile synthesis of α-amino bisphosphonates has been achieved through one-pot interrupted Ritter-type reaction under mild conditions. The reactive Ritter intermediate nitrilium is in situ generated by treatment of nitrile with readily accessible Tf2O/HC(OR1)3, which is trapped by phosphite ester to deliver the desired product. This protocol is efficient, scalable, and well compatible with a broad scope of substrates. In addition, plentiful characteristic JP-C couplings including unusual five-bond long-range 5JP-C and 3JP-C across quaternary carbon and hetero (N) atoms were observed in 13C NMR spectra.
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Affiliation(s)
- Ya-Cheng Hong
- Department of Chemical Biology and Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Jian-Liang Ye
- Department of Chemical Biology and Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Pei-Qiang Huang
- Department of Chemical Biology and Fujian Provincial Key Laboratory of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
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5
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Ge S, Zhu YM, Xu XP, Ji SJ. [4 + 1 + 1] Tandem Cyclization Reaction Involving Isocyanides: Access to 2-(Trifluoromethyl)quinazolin-4(3 H)-imines. J Org Chem 2022; 87:3422-3432. [PMID: 35133158 DOI: 10.1021/acs.joc.1c03008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A palladium-catalyzed three-component reaction of isocyanides, 2,2,2-trifluoro-N-(2-iodophenyl)acetimidoyl chlorides, and amines for the one-pot synthesis of 2-(trifluoromethyl)quinazolin-4(3H)-imines was described. The protocol features a wide substrate scope, high efficiency, and readily available raw materials.
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Affiliation(s)
- Shen Ge
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, P. R. China
| | - Yi-Ming Zhu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, P. R. China
| | - Xiao-Ping Xu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, P. R. China.,Innovation Center for Chemical Science, Soochow University, Suzhou 215123, P. R. China
| | - Shun-Jun Ji
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, P. R. China
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6
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Jiang S, Cao WB, Xu XP, Ji SJ. Cobalt-Catalyzed Isocyanide-Based Three-Component Cascade for the Synthesis of Quinazolines. Org Lett 2021; 23:6740-6744. [PMID: 34382812 DOI: 10.1021/acs.orglett.1c02316] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A Co-catalyzed cyclization reaction of isocyanides, azides, and amines to access quinazoline derivatives was described. This protocol features a high atom economy, mild reaction conditions, excellent yields, and a broad substrate scope. This cascade reaction involved three or four C-N bonds and the formation of one or two rings. The quinazolin-4(H)-imines obtained are proven to be versatile intermediates for further valuable transformations. It was also found that the cobalt catalyst could be isolated from the reaction mixture and reused.
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Affiliation(s)
- Shuai Jiang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China
| | - Wen-Bin Cao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China
| | - Xiao-Ping Xu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China.,Innovation Center for Chemical Science, Soochow University, Suzhou 215123, China
| | - Shun-Jun Ji
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China
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7
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Wang C, Rui X, Si D, Dai R, Zhu Y, Wen H, Li W, Liu J. Copper‐Catalyzed Three‐Component Cascade Reaction of Benzaldehyde with Benzylamine and Hydroxylamine or Aniline: Synthesis of 1,2,4‐Oxadiazoles and Quinazolines. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001535] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Chao Wang
- School of Pharmacy Nanjing University of Chinese Medicine Nanjing 210023 People's Republic of China
| | - Xiyan Rui
- School of Pharmacy Nanjing University of Chinese Medicine Nanjing 210023 People's Republic of China
| | - Dongjuan Si
- School of Pharmacy Nanjing University of Chinese Medicine Nanjing 210023 People's Republic of China
| | - Rupeng Dai
- School of Pharmacy Nanjing University of Chinese Medicine Nanjing 210023 People's Republic of China
| | - Yueyue Zhu
- School of Pharmacy Nanjing University of Chinese Medicine Nanjing 210023 People's Republic of China
| | - Hongmei Wen
- School of Pharmacy Nanjing University of Chinese Medicine Nanjing 210023 People's Republic of China
| | - Wei Li
- School of Pharmacy Nanjing University of Chinese Medicine Nanjing 210023 People's Republic of China
| | - Jian Liu
- School of Pharmacy Nanjing University of Chinese Medicine Nanjing 210023 People's Republic of China
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8
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Mo F, Qiu D, Zhang L, Wang J. Recent Development of Aryl Diazonium Chemistry for the Derivatization of Aromatic Compounds. Chem Rev 2021; 121:5741-5829. [DOI: 10.1021/acs.chemrev.0c01030] [Citation(s) in RCA: 69] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Fanyang Mo
- Department of Energy and Resources Engineering, College of Engineering, Peking University, Beijing 100871, China
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
| | - Di Qiu
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, China
| | - Lei Zhang
- Department of Energy and Resources Engineering, College of Engineering, Peking University, Beijing 100871, China
| | - Jianbo Wang
- Beijing National Laboratory of Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
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9
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Ramanathan M, Wan J, Liu YH, Peng SM, Liu ST. Synthesis of 2-arylamino-3-cyanoquinolines via a cascade reaction through a nitrilium intermediate. Org Biomol Chem 2020; 18:975-982. [PMID: 31932827 DOI: 10.1039/c9ob02427a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new method for the preparation of 2-amino-3-cyanoquinolines from readily available aryldiazonium salts, 2-aminoarylketones, and malononitrile via a cascade reaction is reported. This one-pot approach involves the in situ generation of an N-arylnitrilium intermediate from the direct reaction of aryldiazonium salts and malononitrile, which undergoes intermolecular amination, Knoevenagel condensation, and then aromatization to yield the desired compound in moderate to good yields. This methodology features a quick assembly of C2 and C3 functionalized quinolines.
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Affiliation(s)
- Mani Ramanathan
- Department of Chemistry, National Taiwan University, Taipei 106, Taiwan.
| | - Jing Wan
- Department of Chemistry, National Taiwan University, Taipei 106, Taiwan.
| | - Yi-Hung Liu
- Department of Chemistry, National Taiwan University, Taipei 106, Taiwan.
| | - Shie-Ming Peng
- Department of Chemistry, National Taiwan University, Taipei 106, Taiwan.
| | - Shiuh-Tzung Liu
- Department of Chemistry, National Taiwan University, Taipei 106, Taiwan.
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10
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Xing H, Chen J, Shi Y, Huang T, Hai L, Wu Y. Synthesis of 4-ethenyl quinazolines via rhodium(iii)-catalyzed [5 + 1] annulation reaction of N-arylamidines with cyclopropenones. Org Chem Front 2020. [DOI: 10.1039/c9qo01372e] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
An unprecedented synthesis of 4-ethenyl quinazolines/2-benzoyl quinazolines via Rh(iii)-catalyzed C–H annulation reaction was reported.
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Affiliation(s)
- Huimin Xing
- Key Laboratory of Drug Targeting and Drug Delivery System of Education Ministry
- Department of Medicinal Chemistry
- West China School of Pharmacy
- Sichuan University
- Chengdu
| | - Jian Chen
- Key Laboratory of Drug Targeting and Drug Delivery System of Education Ministry
- Department of Medicinal Chemistry
- West China School of Pharmacy
- Sichuan University
- Chengdu
| | - Yuesen Shi
- Key Laboratory of Drug Targeting and Drug Delivery System of Education Ministry
- Department of Medicinal Chemistry
- West China School of Pharmacy
- Sichuan University
- Chengdu
| | - Tianle Huang
- Key Laboratory of Drug Targeting and Drug Delivery System of Education Ministry
- Department of Medicinal Chemistry
- West China School of Pharmacy
- Sichuan University
- Chengdu
| | - Li Hai
- Key Laboratory of Drug Targeting and Drug Delivery System of Education Ministry
- Department of Medicinal Chemistry
- West China School of Pharmacy
- Sichuan University
- Chengdu
| | - Yong Wu
- Key Laboratory of Drug Targeting and Drug Delivery System of Education Ministry
- Department of Medicinal Chemistry
- West China School of Pharmacy
- Sichuan University
- Chengdu
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11
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Chan CK, Lai CY, Wang CC. TMSOTf-catalyzed synthesis of substituted quinazolines using hexamethyldisilazane as a nitrogen source under neat and microwave irradiation conditions. Org Biomol Chem 2020; 18:7201-7212. [DOI: 10.1039/d0ob01507e] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
An efficient synthetic route for the synthesis of substituted quinazolines under neat, metal-free and microwave irradiation conditions has been developed by using TMSOTf as an acid catalyst and HMDS as a nitrogen source.
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Affiliation(s)
| | - Chien-Yu Lai
- Institute of Chemistry
- Academia Sinica
- Taipei 115
- Taiwan
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12
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Manning TW, Al-Abdul-Wahid MS, Manderville RA, Josephy PD, Kung RW, Wetmore SD. Structure of an Unusual Tetracyclic Deoxyguanosine Adduct: Implications for Frameshift Mutagenicity of ortho-Cyano Nitroanilines. Chem Res Toxicol 2019; 33:584-593. [DOI: 10.1021/acs.chemrestox.9b00411] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
| | | | | | | | - Ryan W. Kung
- Department of Chemistry and Biochemistry, University of Lethbridge, Lethbridge, Alberta T1K 3M4, Canada
| | - Stacey D. Wetmore
- Department of Chemistry and Biochemistry, University of Lethbridge, Lethbridge, Alberta T1K 3M4, Canada
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13
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Hussen AS, Bagchi S, Sharma A. Ammonium Chloride Assisted Microwave Mediated Domino Multicomponent Reaction: An Efficient and Sustainable Synthesis of Quinazolin‐4(3
H
)‐imines under Solvent Free Condition. ChemistrySelect 2019. [DOI: 10.1002/slct.201900923] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
| | - Sourav Bagchi
- Department of ChemistryIndian Institute of Technology Roorkee Roorkee- 247667
| | - Anuj Sharma
- Department of ChemistryIndian Institute of Technology Roorkee Roorkee- 247667
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14
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Rodrigues R, Tran LQ, Darses B, Dauban P, Neuville L. Copper‐Promoted Tandem Three‐Component Access to Quinazolin‐4(H)‐imines and Benzimidazo[1,2‐c]quinazolines. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900658] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Romain Rodrigues
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301Université Paris-Sud, Université Paris-Saclay 1, av. de la Terrasse 91198 Gif-sur-Yvette France
| | - Lam Quang Tran
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301Université Paris-Sud, Université Paris-Saclay 1, av. de la Terrasse 91198 Gif-sur-Yvette France
| | - Benjamin Darses
- Université Grenoble AlpesDépartement de Chimie Moléculaire, CNRS UMR-5250 38058 Grenoble France
| | - Philippe Dauban
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301Université Paris-Sud, Université Paris-Saclay 1, av. de la Terrasse 91198 Gif-sur-Yvette France
| | - Luc Neuville
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301Université Paris-Sud, Université Paris-Saclay 1, av. de la Terrasse 91198 Gif-sur-Yvette France
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15
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He D, Zhuang Z, Wang X, Li J, Li J, Wu W, Zhao Z, Jiang H, Tang BZ. Assembly of 1 H-isoindole derivatives by selective carbon-nitrogen triple bond activation: access to aggregation-induced emission fluorophores for lipid droplet imaging. Chem Sci 2019; 10:7076-7081. [PMID: 31588275 PMCID: PMC6677114 DOI: 10.1039/c9sc01035a] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Accepted: 06/07/2019] [Indexed: 12/14/2022] Open
Abstract
A method of selectively activating carbon–nitrogen triple bonds has been developed to access 1H-isoindole AIE fluorophores for lipid droplet imaging.
A novel strategy has been established to assemble a series of single (Z)- or (E)-1H-isoindole derivatives through selectively and sequentially activating carbon–nitrogen triple bonds in a multicomponent system containing various nucleophilic and electrophilic sites. The reaction provides efficient access to structurally unique fluorophores with aggregation-induced emission characteristics. These new fluorophores show fluorescence wavelengths and efficiencies that can be modulated and have excellent potential to specifically light up lipid droplets (LDs) in living cells with bright fluorescence, low cytotoxicity and better photostability than commercially available LD-specific dyes.
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Affiliation(s)
- Dandan He
- Key Laboratory of Functional Molecular Engineering of Guang Dong Province , School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510641 , P. R. China . ;
| | - Zeyan Zhuang
- State Key Laboratory of Luminescent Materials and Devices , Center for Aggregation-Induced Emission , South China University of Technology , Guangzhou 510640 , China .
| | - Xu Wang
- Key Laboratory of Functional Molecular Engineering of Guang Dong Province , School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510641 , P. R. China . ;
| | - Jiawei Li
- Key Laboratory of Functional Molecular Engineering of Guang Dong Province , School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510641 , P. R. China . ;
| | - Jianxiao Li
- Key Laboratory of Functional Molecular Engineering of Guang Dong Province , School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510641 , P. R. China . ;
| | - Wanqing Wu
- Key Laboratory of Functional Molecular Engineering of Guang Dong Province , School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510641 , P. R. China . ; .,State Key Laboratory of Luminescent Materials and Devices , Center for Aggregation-Induced Emission , South China University of Technology , Guangzhou 510640 , China .
| | - Zujin Zhao
- State Key Laboratory of Luminescent Materials and Devices , Center for Aggregation-Induced Emission , South China University of Technology , Guangzhou 510640 , China .
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guang Dong Province , School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510641 , P. R. China . ;
| | - Ben Zhong Tang
- State Key Laboratory of Luminescent Materials and Devices , Center for Aggregation-Induced Emission , South China University of Technology , Guangzhou 510640 , China . .,Department of Chemistry , Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction , The Hong Kong University of Science & Technology , Kowloon , Hong Kong , China
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16
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Ramanathan M, Wan J, Liu ST. Preparation of N-Arylquinazolinium Salts via a Cascade Approach. J Org Chem 2019; 84:7459-7467. [PMID: 31082227 DOI: 10.1021/acs.joc.9b00601] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An easy manipulation method for the preparation of N-arylquinazolinium salts is described from readily available aryldiazonium salts, nitriles, and 2-aminoarylketones in a one-pot operation. This method relies on the in situ generation of the N-arylnitrilium intermediate from the reaction of aryldiazonium salt with nitrile, which undergoes amination/cascade cyclization/aromatization, leading to N-arylquinazolinium salts in excellent yields. Nucleophilic addition of alkoxide to these N-arylquinazolinium salts provides functionalized dihydro- N-arylquinazoline.
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Affiliation(s)
- Mani Ramanathan
- Department of Chemistry , National Taiwan University , Taipei 106 , Taiwan
| | - Jing Wan
- Department of Chemistry , National Taiwan University , Taipei 106 , Taiwan
| | - Shiuh-Tzung Liu
- Department of Chemistry , National Taiwan University , Taipei 106 , Taiwan
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17
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Zhang Y, Liu JQ, Wang XS. An efficient synthesis of 16H-dibenzo[2,3:6,7][1,4]oxazepino[5,4-b]quinazolin-16-ones via an Ullmann reaction catalyzed by CuI. Org Biomol Chem 2019; 16:1679-1685. [PMID: 29446417 DOI: 10.1039/c8ob00005k] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
CuI functions as a mild Lewis acid catalyst to promote the condensation and cyclization reaction of 2-amino-N-(2-hydroxyphenyl)benzamide and 2-bromobenzaldehyde to build the quinazoline moiety first. With the addition of Cs2CO3, it also can catalyse the subsequent intramolecular Ullmann type reaction to give 16H-dibenzo[2,3:6,7][1,4]oxazepino[5,4-b]quinazolin-16-ones in good yields.
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Affiliation(s)
- Yan Zhang
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional Materials, Jiangsu Normal University, Xuzhou Jiangsu 221116, P. R. China.
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18
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Preparation of 4(3H)-quinazolinones from aryldiazonium salt, nitriles and 2-aminobenzoate via a cascade annulation. Tetrahedron 2019. [DOI: 10.1016/j.tet.2018.12.065] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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19
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Three component reaction of aryl diazonium salt with sulfonamide & actonitrile to synthesize N-sulfonyl amidine. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.10.027] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Ramanathan M, Liu ST. Preparation of Quinazolinoquinazolinones via a Cascade Approach. J Org Chem 2018; 83:14138-14145. [DOI: 10.1021/acs.joc.8b02239] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Mani Ramanathan
- Department of Chemistry, National Taiwan University, Taipei 106, Taiwan
| | - Shiuh-Tzung Liu
- Department of Chemistry, National Taiwan University, Taipei 106, Taiwan
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21
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Ramanathan M, Wang YH, Liu YH, Peng SM, Cheng YC, Liu ST. Preparation of Ketimines from Aryldiazonium Salts, Arenes, and Nitriles via Intermolecular Arylation of N-Arylnitrilium Ions. J Org Chem 2018; 83:6133-6141. [PMID: 29732894 DOI: 10.1021/acs.joc.8b01000] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A transition-metal-free approach for the preparation of N-arylketimines has been developed from the direct reaction of aryldiazonium salts, arenes, and nitriles in a one-pot fashion with the consecutive formation of N-C and C-C bonds. This approach proceeds via an in situ generation of N-arylnitrilium intermediate, which then undergoes intermolecular arylation. This three-component strategy offers a step- and atom-efficient way to N-arylketimines from easily accessible reagents under mild reaction conditions. The characterization of stereochemistry of ketimine was achieved by X-ray crystallographic structure and theoretical calculation. Operational simplicity, shorter reaction time, excellent functional group compatibility, and scalability are the key features of this report.
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Affiliation(s)
- Mani Ramanathan
- Department of Chemistry , National Taiwan University , Taipei 106 , Taiwan
| | - Yu-Hao Wang
- Department of Chemistry , National Taiwan University , Taipei 106 , Taiwan
| | - Yi-Hung Liu
- Department of Chemistry , National Taiwan University , Taipei 106 , Taiwan
| | - Shie-Ming Peng
- Department of Chemistry , National Taiwan University , Taipei 106 , Taiwan
| | - Yuan-Chung Cheng
- Department of Chemistry , National Taiwan University , Taipei 106 , Taiwan
| | - Shiuh-Tzung Liu
- Department of Chemistry , National Taiwan University , Taipei 106 , Taiwan
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22
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Chen WL, Wu SY, Mo XL, Wei LX, Liang C, Mo DL. Synthesis of 2-Aminobenzonitriles through Nitrosation Reaction and Sequential Iron(III)-Catalyzed C–C Bond Cleavage of 2-Arylindoles. Org Lett 2018; 20:3527-3530. [DOI: 10.1021/acs.orglett.8b01294] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Wei-Li Chen
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Ministry of Science and Technology of China; School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, 15 Yu Cai Road, Guilin, 541004, China
| | - Si-Yi Wu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Ministry of Science and Technology of China; School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, 15 Yu Cai Road, Guilin, 541004, China
| | - Xue-Ling Mo
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Ministry of Science and Technology of China; School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, 15 Yu Cai Road, Guilin, 541004, China
| | - Liu-Xu Wei
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Ministry of Science and Technology of China; School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, 15 Yu Cai Road, Guilin, 541004, China
| | - Cui Liang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Ministry of Science and Technology of China; School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, 15 Yu Cai Road, Guilin, 541004, China
| | - Dong-Liang Mo
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Ministry of Science and Technology of China; School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, 15 Yu Cai Road, Guilin, 541004, China
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23
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Zhang X, Wang S, Liu Y, Xi C. Triflates-Triggered Intermolecular Cyclization of Carbodiimides Leading to 2-Aminoquinazolinone and 2,4-Diaminoquinazoline Derivatives. Org Lett 2018; 20:2148-2151. [DOI: 10.1021/acs.orglett.8b00314] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Xiaowei Zhang
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Sheng Wang
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Yu Liu
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Chanjuan Xi
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China
- State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
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